“If you’re a @sprint customer, you’re in the middle of a #framilyfued and it’s time to up and go!” Legere tweeted Wednesday. “Join T-Mobile now and jump off the Sprint bus before it crashes!”

It’s not the first time Legere has turned to social media to mock Sprint and other competitors like AT&T Inc. and Verizon Wireless. The 55-year-old exec frequently blasts Sprint for its oddball “Framily” campaign and often uses the hashtag “#SprintLikeHell” to woo customers.

“Looks like @sprint has a new #framily member… and he’s got a lot of framily therapy to do, asap. #justsayin,” he tweeted Wednesday.

Legere’s rants, however, have also landed him in trouble. Legere dished up several expletives for top carriers AT&T and Verizon during a media event, for which Legere later apologized.

“These high and mighty duopolists that are raping you for every penny you have, if they could do something nice for you they would,” he said of AT&T and Verizon. “The ****ers hate you.”

Legere was rumored to be Sprint’s next CEO if it had successfully merged with T-Mobile.